Tool holder



H. BLIDSOE TOOL HOLDER June 21 1927.

Filed O t.

2 Sheets-Sheet 1 lNVENTOR' Hugo Blidsoe 0 BY ATTORNEY June v2 1, 1927. vBUDSOE 1,633,239

TOOL HOLDER Filed Oct. 9. 1925 I 2 Sfieets-Sheet 2 INVENTOR HugoBlz'dsoe BY dim hv. ATTORNEY Patented June 21, 1927. I

N1 T ED S TES niieo BLIDSOE, 1035 NEW YORK, N; Y.

moor. HOLDER.

' Application filed October 9 This invention relates "to-new'and usefulimprovements in tool holders and has for its objectam'ong other things,to provide a holder that will adjustably and rigidly hold a cutting tooltherein for straight, as well as right or left hand Operation, and onethat can 'be produced at the minimum cost.

Another object is to provide a tool-holder that by adjustable means is'adapted to receive square as well as round tool-bits.

Still another object 'of'iny invention is the construct-ion of a toolholder 'in such a manner that it may beuse'dfor the operation ofaknurling tool. I

This tool holder may, as usually, be used with a lathe, planer orshap'er.

The invention consists of the novel features, details of construction,and combination of parts, whichf will be set forth more fully in the"following description and pointed out in the append'etbclaims, andwhich are illustrated in the accompanying drawings forming a part ofthis specifica- 1 tion; like numerals of reference designatingcorresponding parts in the several views:

Figure 1 is a side elevation of my improved tool holder. Fig. 2 is a topplan view of same; Fig. 3 is a transverse longitudinal section on lineaa of Fig. 2; Fig. 1 is a rear end section takenon line bb of Fig. 1;Figs. 5, 6, 7, 8, 9,10 and 11 are detail sectional views. 1

Referring to the drawings, 10 designates a body member, having twoprojecting jaws,

'11, adapted to receive a sidewise turnable head 12; said head beingprovided with adjustable means to receive and hold a cutting bar, aswill hereinafter morefully be described.

Said body is provided with an adjustable snap-stopper 13, the object ofwhich is to secure the head12 in a selected position, to which end saidhead has located in the same horizontal plane three orifices, or smallstop holes, 14, adapted to receive said snap-stoper. P The head 12 hascylindrical sides and a flat top and bottom surface, the latter beingprovided with a small bore or hole in its centerto' form 'a pivotal seatfor a set screw 15, inserted through the lower jaw 11; between saidbottom surface and lower jaw I insert a washer 24 to secure steadinessof movement of the head.

The upper surface of said head has in its with a cutawayportion 19 onits uppe'r'part,

, 1925. Serial 'No, 61,393.

center and formed in one piece therewith upperxjaw, said axle isrotatingly enclosed 'ina bushing 17, mounted in the upper jaw andretained therein by a screw 18. 'This axle 1s cylindrically shapedand isprovided which permits a regulation-nut 20, fitte thereto to exert aturnable movement of said axle and head. I

The upper part of the bushing 17 forms acollar,the Surface ofwhichhasigear'cuts extending around the periphery,"as;'at' 2 1 'in'fFig.'6; while the inner surface of said collar is provided with a dejoression J22,

{adapted to receive a coiled spring 23.

"The regulation nut'20'has a correspondapplication of the screw nut 25,which is threaded upo the top of t-he'axle 16; to

make 'said 'atlju'stn'ien t still more "secure a inserted acorrespondingly tapered split nut 31; this split nut may be providedwith a square or round bore, as shown respectively in Figs. 8 and 9, inorder to fit square as well a'sround tool-bits.

The chuck is at its outer periphery provided with three rectangularslits 32 for suitable engagement with a wrench when adj ustment isneeded.

The rear end of the body portion of said toolholder is formed with achannel 33for the insertion of a fiat tool, parting tool or a knurlingtool, as the one shown in Fig. 10. Said channel has two adjustableslides 34 mounted across to secure a tight fitting when the tool isplaced therein. Said slides are provided with top screws 35, and sidefangs 36, the latter slidably engaging the body portion by means ofrecesses 37 provided therein. I r

At the lower end ofsaid channel are inserted two set screws 38 to securea tight grip on the inserted tool.

In order to quickly operate said tool holder I provide a spanner-wrenchas shown ingly shaped surface facing said collar,;as fsho wn inFig. 7,in order to securea close fitting when they are locked together by inFig. 11, wherein the opening 39 fits the screw-nut 25; the opening l0fits the screws 35; while the square-cut end portion 41 is applicable toscrews 88, and the hook portion 4-2 as a means of adjusting the chuck.

Having thus fully described my invention, what I claim as new and desireto se-V cure by Letters Patent of the United States, is:

1. A tool holder asdescribed, comprising in combination" with the turnable head thereof, a vertical axle formed With said head, abushing forrotatably receiving said axle, a collar on said bushing having adepression on one of its faces, and gear cuts on said face, a coilspring in said depression, means for retaining said axle in saidbushing, and means co-operatingwith said collar and spring forpermitting the exertion of a turnable movement onsaid axle and head.

2. In a tool holder as described, a' head, a vertical axle formed in thecenter of said head integral therewith and projecting therefrom, abushing, for rotatably receiving said axle, a collar at the upper end ofsaid bushing provided with a depression in its inner face, gear cutsonsaid iace,'a coiled spring in said depression, a screw for retainingsaid axle in said bushing, and a means for permitting to exert aturnable movement of said axle and head, said means including a nuthavlng gear cuts facing said collar and co-operating with said collarand spring. f.

3. In a tool holder as described, a turnable head, a vertical axleformed in the center of said head integrally therewith and projectingtherefrom, a bushing for rotatably receiving said axle, a collar at theupper end of said bushing provided with a depression in its inner face,gear cuts on said face,

end, adapted to receive a flat tool, two ad:

justable slides mounted across the channel vof said body member, sidefangs on said slides engaging recesses of said body memher, top screwsin said slides, and .side screws in said body to engage and hold thetool inserted in said channel. 1

In testimony whereof I have hereunto atfixed my signature. I Q

' HUGO BLIDSOE.

